body {
    margin: 0 25px;
}

/*sound*/
.main button {
    background-color: transparent;
    border: none;
    position: relative;
    display: inline-block;
    padding: 0 5px;
    height: 21px;
}

.main::before {
    content: attr(aria-label);
    position: absolute;
    top: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%);
    padding: 5px 10px;
    /*background-color: #333;*/
    /*color: #fff;*/
    border-radius: 5px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    writing-mode: horizontal-tb;
    width: 100px;
}

.main:hover::before {
    opacity: 1;
    visibility: visible;
}

i {
    color: #868e96;
}

i:hover {
    color: #495057;
}

.fa-pause {
    width: 10px;
}

.fa-play {
    width: 10px;
}

#speed {
    border: none;
    outline: none;
    border-radius: 5px;
    background-color: #f2f2f2;
    font-family: Arial, sans-serif;
    color: #333;
    width: auto;
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.1);
}

#speed:hover {
    background-color: #e2e2e2;
}

#speed option {
    display: inline-block;
    padding: 0;
    white-space: nowrap;
    text-indent: 0;
}
